P1937 Holden Vk OBD Code

OBD/2 P1937 error code description and symptoms.

Brake Switch Circuit Input Malfunction Indicates PCM did not receive a brake pedal position (BPP) input. Open or short in BPP circuit Open or short in stoplamp circuits Damaged PCM Malfunction in module(s) connected to BPP circuit. (Rear Electronic Module [REM] Windstar and LS6/LS8 or Lighting Control Module (LCM) Continental and Town Car. Damaged brake switch Misadjusted brake switch Check for proper function of stoplamps.

Some systems require that the actuator has an adequate supply of brake fluid. Low brake fluid levels can mimic the symptoms of code P1937, so consult the manual to locate the brake fluid reservoir. Bear in mind that a low fluid level can set code P1937 on some applications, so make sure that on fluid operated systems the fluid level is up to the mark before starting an electrical diagnosis.

P1937 Holden Vk Error Code Repair Process :

OBD P1937 code and tailpipe testing are two different approaches to identify vehicles in need of repair. The OBD system looks for broken or malfunctioning emissions control components and knock sensor 2 circuit high input (bank 2), while tailpipe tests sample a vehicle's exhaust to see if it is above or below certain prescribed limits. Given the robust nature of today's emissions control components, it is entirely possible for an individual component to P1937 malfunction without leading to an immediate increase in emissions at the tailpipe. In such cases, other components (like the catalyst) can temporarily compensate for the part that is broken however, these other components can only do double duty for so long before they, too, begin to malfunction. In addition, OBD also monitors for P1937 and other malfunctions in the fuel system problems that traditional tailpipe tests were not designed to identify. Most state and local areas also include a gas cap pressure test as part of an emission inspection.

Common Causes of Holden Vk P1937 OBD2 Code

A common cause of code P1937 is the failure of Knock Sensor 2 Circuit High Input (Bank 2), but there are several other possible causes as well, such as ;

Failures of clutch motion/travel sensors.
Dirty Oil
Faulty Fuel injector
Foreign matter caught in fuel filler cap

P1937 is a kind of Powertrain Trouble Code

Powertrain of a modern automobile, comprising engine (with exhaust system), transmission, drive shaft, suspension and the wheels. In a motor vehicle, the term powertrain or powerplant describes the main components that generate power and deliver it to the road surface, water, or air.

Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.

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P1937 Holden Vk OBD Code

P1937 Holden Vk Error Code Repair Process :

Common Causes of Holden Vk P1937 OBD2 Code

P1937 code for other Holden cars